The eigenvaluesNote that our beta functions are negative as compared to [1]}, [2]}, who perform renormalization by studying the variation of couplings with respect to length scale, as opposed to momentum scale in our case. are \( -2 + \frac{\epsilon (N+2)}{(N+8)}\)  and \(\epsilon \) . The first eigenvalue is negative and hence the coupling \(g_2\)  is relevant around the WF fixed point and the scaling dimension \(y_t\)  is given by:
\(y_t = 2 - \frac{\epsilon (N+2)}{(N+8)}\) 
